A high number of requests doesn't always mean that character will truly enter, but they are still very good. Skapon was the most-requested SSBM character, but Sakurai didn't want to add him for some reason. Geno was one of the most-requested characters, but what decreases his chances are:
- SSBB has enough Mario characters. Mario, Peach, Bowser, Yoshi, Donkey Kong and Wario. Even though, Yoshi, Donkey Kong and Wario are more than Mario characters, they still count as Mario characters.
- If Geno was added, SSBB wouldn't look good enough without adding Mallow alongside Geno.
AND
- Geno is 3RD-Party. Even though, he appeared in M&L: SS, his cameo appearance in that GBA title was made because Chihiro Fujioka was responsible for Super Mario RPG and the M&L titles, as well as Final Fantasy Legend III (known as Sa•Ga 3 in Japan), the Hamtaro Game Boy titles, Koto Battle (AlphaDream's first title), and Tomato Adventure. Geno's cameo appearance in tha GBA title is just like Pulseman's references in the Pokemon titles and Drill Dozer, as well as his Volteccer (a.k.a. Volt Tackle) being used by Pikachu as his Final Smash.
You Geno supporters can offend me by saying things like "That's bull$#!+" or by posting a SSBB screenshot showing Geno in SSBB while adding text that reads "Geno said you failed!", "You got motherfkucin 0wn3d!", "You are the largest lonesome loser!" or whatever you prefer to say to me if you want, but that doesn't bother me very much and I'm just predicting. Geno is okay in my opinion, and I'm not a Geno fan nor an anti-Geno person.
If Chihiro Fujioka, Square-Enix and Masahiro Sakurai can't add Geno into SSBB, then they might go with DeMille instead, because he is another good character from a Chihiro Fujioka title. Even though he is Japan-Only, he and Tomato Adventure are probably almost as popular as MOTHER 3 in Japan. His two requests have many words, including some info on how DeMille should fight in SSBB, like using Tomato Robo Mk II as his Final Smash.